E.g. in phrasing my question, specifically having to mention a whole bunch of things that obviously aren't the problem but people are going to insist on anyway unless I've already mentioned them myself.
Or the whole "Well, you shouldn't be doing this in the first place so I'm not going to help you with your actual problem".
It can be incredibly helpful to point this out. But often I'm doing things in a certain way for a reason (constraints that aren't relevant for the question, like "yeah but our entire codebase").
So when I say I'm doing it this way for a reason and looking for a way to make it work, either trust my judgment or decide I don't deserve to be helped and stop commenting. But it often ends up being a massive distracting derail preventing others from trying to answer the question I was actually asking in the first place. Most annoyingly, this behaviour is often rewarded with upvotes.
For example:
> "I can't connect to my database due to error 110, I have no idea what that means"
"Why aren't you using an ORM?"
> "I have good reason not to, besides, I'm just looking to fix error 110 now"
"But a good ORM handles these types of errors for you, it'd be stupid not to use it"
> "You're probably right, but that'd require a lot of rewriting and refactoring and that's simply not an option right now"
"Ok, get back to me when you're actually using an ORM and still having trouble with your database"
when all I'm looking for is "That's a connection timeout, tried checking your firewall configuration?"